$SUM
Summit Materials, Inc. Stock $sum

$sum Overview Financials Valuation SEC Filings Company Website

2021 Q1 Form 10-K Financial Statement

#000162828021003021 Filed on February 24, 2021

Income Statement

Concept	2021 Q1	2019 Q4	2018 Q4
Revenue	$624.6M	$506.3M	$445.1M
YoY Change	70.1%	13.74%	1.02%
Cost Of Revenue	$418.7M	$370.9M	$345.2M
YoY Change	31.93%	7.44%	8.28%
Gross Profit	$206.0M	$185.7M	$145.8M
YoY Change	313.43%	27.37%	-14.89%
Gross Profit Margin	32.98%	36.68%	32.76%
Selling, General & Admin	$91.30M	$72.00M	$62.60M
YoY Change	30.06%	15.02%	-6.43%
% of Gross Profit	44.32%	38.77%	42.94%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$65.30M	$55.90M	$56.00M
YoY Change	27.54%	-0.18%	6.67%
% of Gross Profit	31.7%	30.1%	38.41%
Operating Expenses	$148.8M	$124.9M	$116.9M
YoY Change	22.07%	6.84%	3.82%
Operating Profit	$57.20M	$59.93M	$28.55M
YoY Change	-237.1%	109.94%	-50.19%
Interest Expense	-$25.50M	-$28.10M	-$29.90M
YoY Change	-191.67%	-6.02%	4.18%
% of Operating Profit	-44.58%	-46.89%	-104.75%
Other Income/Expense, Net	$8.800M	-$12.60M	$26.30M
YoY Change	-9987.64%	-147.91%	-88.1%
Pretax Income	$49.50M	$19.20M	$24.90M
YoY Change	-171.09%	-22.89%	-89.84%
Income Tax	$13.10M	-$17.20M	$25.90M
% Of Pretax Income	26.46%	-89.58%	104.02%
Net Earnings	$35.20M	$36.40M	-$18.63M
YoY Change	-175.33%	-295.4%	-141.85%
Net Earnings / Revenue	5.64%	7.19%	-4.18%
Basic Earnings Per Share		$0.32	-$0.17
Diluted Earnings Per Share	$305.6K	$0.31	-$0.17
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept	2021 Q1	2019 Q4	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$418.2M	$311.3M	$128.5M
YoY Change	110.05%	142.26%	-66.5%
Cash & Equivalents	$418.2M	$311.3M	$128.5M
Short-Term Investments
Other Short-Term Assets	$11.43M	$13.83M	$16.06M
YoY Change	-24.79%	-13.88%	106.87%
Inventory	$200.3M	$204.8M	$213.9M
Prepaid Expenses
Receivables	$254.7M	$253.3M	$214.5M
Other Receivables	$1.400M	$1.600M	$600.0K
Total Short-Term Assets	$893.3M	$796.3M	$591.5M
YoY Change	29.79%	34.61%	-24.51%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.879B	$1.780B	$1.780B
YoY Change	4.42%	0.0%	10.2%
Goodwill	$1.201B	$1.200B	$1.192B
YoY Change	0.48%	0.64%	15.03%
Intangibles	$47.85M	$23.50M	$18.46M
YoY Change	109.94%	27.29%	9.67%
Long-Term Investments
YoY Change
Other Assets	$55.00M	$55.52M	$50.08M
YoY Change	13.38%	10.85%	-1.92%
Total Long-Term Assets	$3.415B	$3.271B	$3.266B
YoY Change	3.35%	0.16%	8.73%
TOTAL ASSETS
Total Short-Term Assets	$893.3M	$796.3M	$591.5M
Total Long-Term Assets	$3.415B	$3.271B	$3.266B
Total Assets	$4.308B	$4.068B	$3.858B
YoY Change	7.91%	5.44%	1.86%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$120.8M	$116.4M	$107.7M
YoY Change	-1.26%	8.04%	9.07%
Accrued Expenses	$160.6M	$120.0M	$100.5M
YoY Change	56.71%	19.42%	-13.84%
Deferred Revenue	$16.50M	$13.86M	$11.84M
YoY Change	17.67%	17.09%	-24.83%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$6.354M	$7.942M	$6.354M
YoY Change	-19.99%	24.99%	33.35%
Total Short-Term Liabilities	$322.7M	$299.3M	$260.7M
YoY Change	12.9%	14.82%	4.27%
LONG-TERM LIABILITIES
Long-Term Debt	$1.909B	$1.864B	$1.822B
YoY Change	2.48%	2.33%	-0.32%
Other Long-Term Liabilities	$121.3M	$100.3M	$88.20M
YoY Change	26.29%	13.7%	35.0%
Total Long-Term Liabilities	$2.030B	$1.965B	$1.910B
YoY Change	3.65%	2.86%	0.9%
TOTAL LIABILITIES
Total Short-Term Liabilities	$322.7M	$299.3M	$260.7M
Total Long-Term Liabilities	$2.030B	$1.965B	$1.910B
Total Liabilities	$2.692B	$2.623B	$2.515B
YoY Change	3.67%	4.27%	0.0%
SHAREHOLDERS EQUITY
Retained Earnings	$326.8M	$188.8M	$129.7M
YoY Change	127.2%	45.53%	35.38%
Common Stock	$1.265B	$1.234B	$1.194B
YoY Change	2.05%	3.33%	3.46%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.598B	$1.427B	$1.328B
YoY Change
Total Liabilities & Shareholders Equity	$4.308B	$4.068B	$3.858B
YoY Change	7.91%	5.44%	1.86%

Cashflow Statement

Concept	2021 Q1	2019 Q4	2018 Q4
OPERATING ACTIVITIES
Net Income	$35.20M	$36.40M	-$18.63M
YoY Change	-175.33%	-295.4%	-141.85%
Depreciation, Depletion And Amortization	$65.30M	$55.90M	$56.00M
YoY Change	27.54%	-0.18%	6.67%
Cash From Operating Activities	$190.9M	$173.4M	$138.8M
YoY Change	-590.35%	24.93%	-13.14%
INVESTING ACTIVITIES
Capital Expenditures	-$37.20M	-$37.70M	-$36.90M
YoY Change	-160.17%	2.17%	-20.82%
Acquisitions
YoY Change
Other Investing Activities	$4.700M	$4.700M	-$30.80M
YoY Change	-360.97%	-115.26%	10166.67%
Cash From Investing Activities	-$32.60M	-$33.00M	-$67.70M
YoY Change	-42.67%	-51.26%	44.04%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-29.40M	-11.60M	-7.200M
YoY Change	88.39%	61.11%	-55.56%
NET CHANGE
Cash From Operating Activities	190.9M	173.4M	138.8M
Cash From Investing Activities	-32.60M	-33.00M	-67.70M
Cash From Financing Activities	-29.40M	-11.60M	-7.200M
Net Change In Cash	128.9M	128.8M	63.90M
YoY Change	-214.88%	101.56%	-33.85%
FREE CASH FLOW
Cash From Operating Activities	$190.9M	$173.4M	$138.8M
Capital Expenditures	-$37.20M	-$37.70M	-$36.90M
Free Cash Flow	$228.1M	$211.1M	$175.7M
YoY Change	-326.38%	20.15%	-14.87%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	2573000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1781000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	68200000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	12961000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	2831000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	37847000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	61009000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	8159000	USD
CY2021Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	4681000	USD
CY2021Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	29688000	USD
CY2021Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	56328000	USD
CY2021	us-gaap	Royalty Expense RoyaltyExpense	29200000	USD
CY2019	us-gaap	Royalty Expense RoyaltyExpense	24300000	USD
CY2018	us-gaap	Royalty Expense RoyaltyExpense	20100000	USD
CY2021Q1	sum	Royalty Agreement Future Minimum Payments Due Year One RoyaltyAgreementFutureMinimumPaymentsDueYearOne	9916000	USD
CY2021Q1	sum	Royalty Agreement Future Minimum Payments Due Year Two RoyaltyAgreementFutureMinimumPaymentsDueYearTwo	9880000	USD
CY2021Q1	sum	Royalty Agreement Future Minimum Payments Due Year Three RoyaltyAgreementFutureMinimumPaymentsDueYearThree	9594000	USD
CY2021Q1	sum	Royalty Agreement Future Minimum Payments Due Year Four RoyaltyAgreementFutureMinimumPaymentsDueYearFour	9295000	USD
CY2021Q1	sum	Royalty Agreement Future Minimum Payments Due Year Five RoyaltyAgreementFutureMinimumPaymentsDueYearFive	9052000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1605000	USD
CY2021	sum	Gain Loss On Debt Financing GainLossOnDebtFinancing	-4064000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2638000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2216000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	15436000	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9605000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3336000	USD
CY2021	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	3338000	USD
CY2021Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18367000	USD
CY2019	sum	Gain Loss On Debt Financing GainLossOnDebtFinancing	-14565000	USD
CY2018	sum	Gain Loss On Debt Financing GainLossOnDebtFinancing	-149000	USD
CY2021	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	-7559000	USD
CY2019	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	16237000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	15475000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6312000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3501000	USD
CY2019	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	2850000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3827000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	69000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	463000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-16012000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17032000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	59284000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12185000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17101000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59747000	USD
CY2018	sum	Income Tax Reconciliation Effect Of Tra Expense IncomeTaxReconciliationEffectOfTraExpense	-8282000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-17691000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	17592000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3117000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2188000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4767000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12185000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17101000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59747000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	220685000	USD
CY2018	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	-22684000	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	12108000	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2747000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2222000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4238000	USD
CY2021	sum	Non Cash Compensation Expense NonCashCompensationExpense	28857000	USD
CY2019	sum	Non Cash Compensation Expense NonCashCompensationExpense	20403000	USD
CY2018	sum	Non Cash Compensation Expense NonCashCompensationExpense	25378000	USD
CY2021	sum	Miscellaneous Other Income Expense MiscellaneousOtherIncomeExpense	-2957000	USD
CY2021	sum	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	221320000	USD
CY2019	sum	Miscellaneous Other Income Expense MiscellaneousOtherIncomeExpense	3800000	USD
CY2018	sum	Miscellaneous Other Income Expense MiscellaneousOtherIncomeExpense	6247000	USD
CY2021	sum	Adjusted Earnings Before Interest Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestIncomeTaxesDepreciationAndAmortization	485036000	USD
CY2019	sum	Adjusted Earnings Before Interest Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestIncomeTaxesDepreciationAndAmortization	461462000	USD
CY2018	sum	Adjusted Earnings Before Interest Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestIncomeTaxesDepreciationAndAmortization	406261000	USD
CY2021	sum	Adjusted Earnings Before Interest Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestIncomeTaxesDepreciationAndAmortization	485036000	USD
CY2019	sum	Adjusted Earnings Before Interest Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestIncomeTaxesDepreciationAndAmortization	461462000	USD
CY2018	sum	Adjusted Earnings Before Interest Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestIncomeTaxesDepreciationAndAmortization	406261000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	177249000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	177495000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	4257000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-2006000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	4034000	USD
CY2021	sum	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-41548000	USD
CY2019	sum	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	18885000	USD
CY2018	sum	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	22663000	USD
CY2021	sum	Income Tax Reconciliation Effect Of Tra Expense IncomeTaxReconciliationEffectOfTraExpense	-6000	USD
CY2019	sum	Income Tax Reconciliation Effect Of Tra Expense IncomeTaxReconciliationEffectOfTraExpense	2436000	USD
CY2019	sum	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	217102000	USD
CY2018	sum	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	204910000	USD
CY2021Q1	us-gaap	Assets Assets	4308011000	USD
CY2019Q4	us-gaap	Assets Assets	4067556000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1812000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2638000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2216000	USD
CY2021Q1	us-gaap	Asset Retirement Obligation AssetRetirementObligation	43603000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	36676000	USD
CY2021	sum	Purchase Commitment Terms PurchaseCommitmentTerms	P1Y
CY2021Q1	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	0	USD
CY2021Q1	sum	Trade Accounts Receivable TradeAccountsReceivable	191871000	USD
CY2019Q4	sum	Trade Accounts Receivable TradeAccountsReceivable	191672000	USD
CY2021Q1	us-gaap	Billed Contract Receivables BilledContractReceivables	47179000	USD
CY2019Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	47966000	USD
CY2021Q1	sum	Retention Receivables RetentionReceivables	18824000	USD
CY2019Q4	sum	Retention Receivables RetentionReceivables	17808000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	253256000	USD
CY2021Q1	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	1339000	USD
CY2019Q4	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	1596000	USD
CY2021Q1	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	259213000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	259042000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	13088000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	13864000	USD
CY2021	sum	Contract With Customer Asset Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Estimates ContractWithCustomerAssetCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrEstimates	-4535000	USD
CY2021	sum	Contract With Customer Liability Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Cost Estimates ContractWithCustomerLiabilityCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrCostEstimates	2616000	USD
CY2021	sum	Contract With Customer Asset Increase Decrease For Other Activity ContractWithCustomerAssetIncreaseDecreaseForOtherActivity	113000	USD
CY2021	sum	Contract With Customer Liability Increase Decrease For Other Activities ContractWithCustomerLiabilityIncreaseDecreaseForOtherActivities	19000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	8666000	USD
CY2021Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	16499000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4517000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5786000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	254696000	USD
CY2021Q1	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	828000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	902000	USD
CY2021Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	23482000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	20689000	USD
CY2021Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	160570000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	120005000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	2691000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1675000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1675000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	231877000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	212333000	USD
CY2021Q1	sum	Deferred Tax Liability Included In Other Noncurrent Liabilities DeferredTaxLiabilityIncludedInOtherNoncurrentLiabilities	18393000	USD
CY2019Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	7666000	USD
CY2021Q1	sum	Accrued Asset Purchase Payments Current AccruedAssetPurchasePaymentsCurrent	9749000	USD
CY2019Q4	sum	Accrued Asset Purchase Payments Current AccruedAssetPurchasePaymentsCurrent	3525000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12200000	USD
CY2019Q4	sum	Deferred Tax Assets Liabilities Net Excluding Recorded In Noncurrent Liabilities DeferredTaxAssetsLiabilitiesNetExcludingRecordedInNoncurrentLiabilities	204066000	USD
CY2021Q1	sum	Deferred Tax Assets Subject To Tax Receivable Agreement DeferredTaxAssetsSubjectToTaxReceivableAgreement	378500000	USD
CY2019Q4	sum	Deferred Tax Liability Included In Other Noncurrent Liabilities DeferredTaxLiabilityIncludedInOtherNoncurrentLiabilities	8267000	USD
CY2021Q1	sum	Deferred Tax Assets Liabilities Net Excluding Recorded In Noncurrent Liabilities DeferredTaxAssetsLiabilitiesNetExcludingRecordedInNoncurrentLiabilities	213484000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22663000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	18885000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41548000	USD
CY2021	sum	Unrecognized Tax Benefits Decrease Resulting From New Regulations UnrecognizedTaxBenefitsDecreaseResultingFromNewRegulations	41548000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17100000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59700000	USD
CY2018Q4	sum	Decrease In Net Deferred Tax Assets Due To Change In Federal Statutory Tax Rate DecreaseInNetDeferredTaxAssetsDueToChangeInFederalStatutoryTaxRate	17600000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	41500000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	22700000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1700000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1700000	USD
CY2021Q1	sum	Tax Receivable Agreement Liability TaxReceivableAgreementLiability	321700000	USD
CY2021	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2019	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2018	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0	USD
CY2019	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	16200000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1675000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	19366000	USD
CY2021	sum	Valuation Allowance Deferred Tax Asset Current Year Increase Decrease From Operations ValuationAllowanceDeferredTaxAssetCurrentYearIncreaseDecreaseFromOperations	0	USD
CY2019	sum	Valuation Allowance Deferred Tax Asset Current Year Increase Decrease From Operations ValuationAllowanceDeferredTaxAssetCurrentYearIncreaseDecreaseFromOperations	17691000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1675000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1675000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	2400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	1100000	USD
CY2021	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	-7600000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	137967000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	59066000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33906000	USD
CY2021	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	137967000	USD
CY2019	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	59066000	USD
CY2018	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	33906000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3068000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3171000	USD
CY2021	us-gaap	Lease Cost LeaseCost	70182000	USD
CY2019	us-gaap	Lease Cost LeaseCost	63524000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	28543000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	32777000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8188000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8427000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	21500000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	25381000	USD
CY2021Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	29688000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	33808000	USD
CY2021Q1	sum	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	92679000	USD
CY2019Q4	sum	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	82660000	USD
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	32828000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	24907000	USD
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	59851000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	57753000	USD
CY2021Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	24601000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	16007000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	10134000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	10451000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	316000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	423000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	44066000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	38417000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	12598000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	11062000	USD
CY2018Q4	us-gaap	Assets Assets	3857641000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28900000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20400000	USD
CY2018	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	7499000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	23965000	USD
CY2021	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	8227000	USD
CY2019	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	3847000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25400000	USD
CY2021Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	22000000.0	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P1Y8M12D
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	12100000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11700000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11200000	USD
CY2021Q1	sum	Number Of Noncontributory Defined Benefit Pension Plans NumberOfNoncontributoryDefinedBenefitPensionPlans	2	plan
CY2021Q1	sum	Number Of Unfunded Healthcare And Life Insurance Benefit Plans NumberOfUnfundedHealthcareAndLifeInsuranceBenefitPlans	2	plan
CY2016Q1	sum	Number Of Unfunded Healthcare Plans For Benefits Prior To Medicare Eligibility NumberOfUnfundedHealthcarePlansForBenefitsPriorToMedicareEligibility	1	plan
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	955815000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1850169000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1747449000	USD
CY2021	us-gaap	Depreciation Depreciation	195300000	USD
CY2019	us-gaap	Depreciation Depreciation	196800000	USD
CY2018	us-gaap	Depreciation Depreciation	199600000	USD
CY2021Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	24600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	16000000.0	USD
CY2021Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	31700000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	40400000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	26700000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	18600000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	7100000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	3200000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	2600000	USD
CY2021Q1	us-gaap	Inventory Ore Stockpiles On Leach Pads InventoryOreStockpilesOnLeachPads	137938000	USD
CY2019Q4	us-gaap	Inventory Ore Stockpiles On Leach Pads InventoryOreStockpilesOnLeachPads	140461000	USD
CY2021Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	32993000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	33023000	USD
CY2021Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	9281000	USD
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	7664000	USD
CY2021Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	20096000	USD
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	23639000	USD
CY2021Q1	us-gaap	Inventory Net InventoryNet	200308000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	204787000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	2983094000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	2703264000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	1132925000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2222140000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2101002000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	47852000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3136000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3003000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2908000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2863000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	32813000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1000000000	USD
CY2021Q1	us-gaap	Long Term Debt LongTermDebt	1915425000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	1872273000	USD
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	6354000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	7942000	USD
CY2021Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1909071000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1864331000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	6354000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	6354000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	6354000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	597252000	USD
CY2021Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	300000000	USD
CY2021Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1916314000	USD
CY2021Q1	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	889000	USD
CY2021Q1	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	16724000	USD
CY2021Q1	sum	Long Term Debt Net LongTermDebtNet	1898701000	USD
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001621563
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021Q1	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2021Q1	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesNoncurrent
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-01-02
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8427000	USD
CY2021Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	16499000	USD
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--01-02
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-36873
CY2021	dei	Entity Registrant Name EntityRegistrantName	SUMMIT MATERIALS, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1550 Wynkoop Street
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	3rd Floor
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Denver
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	13864000	USD
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	CO
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	47-1984212
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	80202
CY2021	dei	City Area Code CityAreaCode	303
CY2021	dei	Local Phone Number LocalPhoneNumber	893-0012
CY2021	dei	Security12b Title Security12bTitle	Class A Common Stock (par value $.01 per share)
CY2021	dei	Trading Symbol TradingSymbol	SUM
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021Q1	us-gaap	Liabilities Current LiabilitiesCurrent	322689000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	299297000	USD
CY2021Q1	sum	Long Term Debt Noncurrent Net LongTermDebtNoncurrentNet	1892347000	USD
CY2021Q1	sum	Acquisition Related Liabilities Non Current AcquisitionRelatedLiabilitiesNonCurrent	12246000	USD
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019Q4	sum	Acquisition Related Liabilities Non Current AcquisitionRelatedLiabilitiesNonCurrent	19801000	USD
CY2021Q1	sum	Tax Receivable Agreement Liability TaxReceivableAgreementLiability	321680000	USD
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	1700000000	USD
CY2019Q4	sum	Long Term Debt Noncurrent Net LongTermDebtNoncurrentNet	1851057000	USD
CY2021Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	418181000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	311319000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	254696000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	253256000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	8666000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	13088000	USD
CY2021Q1	us-gaap	Inventory Net InventoryNet	200308000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	204787000	USD
CY2021Q1	us-gaap	Other Assets Current OtherAssetsCurrent	11428000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	13831000	USD
CY2021Q1	us-gaap	Assets Current AssetsCurrent	893279000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	796281000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1850169000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1747449000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	1201291000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	1199699000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	47852000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	23498000	USD
CY2021Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	231877000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	212333000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	28543000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	32777000	USD
CY2021Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	55000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	55519000	USD
CY2021Q1	us-gaap	Assets Assets	4308011000	USD
CY2019Q4	us-gaap	Assets Assets	4067556000	USD
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	6354000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	7942000	USD
CY2021Q1	sum	Acquisition Related Liabilities Current AcquisitionRelatedLiabilitiesCurrent	10265000	USD
CY2019Q4	sum	Acquisition Related Liabilities Current AcquisitionRelatedLiabilitiesCurrent	32700000	USD
CY2021Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	120813000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	116359000	USD
CY2021Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	160570000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	120005000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8188000	USD
CY2019Q4	sum	Tax Receivable Agreement Liability TaxReceivableAgreementLiability	326965000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	21500000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	25381000	USD
CY2021Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	121281000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1342145000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	61123000	USD
CY2019	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2645000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	19076000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20403000	USD
CY2019	sum	Other Equity Activity Value OtherEquityActivityValue	-619000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1444773000	USD
	us-gaap	Profit Loss ProfitLoss	141240000	USD
	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1813000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1043000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	100282000	USD
CY2021Q1	us-gaap	Liabilities Liabilities	2691743000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	2622783000	USD
CY2021Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1264681000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1234020000	USD
CY2021Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	326772000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	188805000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	5203000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	3448000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	1597801000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1427407000	USD
CY2021Q1	sum	Stockholders Equity Attributable To Noncontrolling Interest Excluding Portion Attributable To Noncontrolling Interest Of Wholly Owned Indirect Subsidiary Of Registrant StockholdersEquityAttributableToNoncontrollingInterestExcludingPortionAttributableToNoncontrollingInterestOfWhollyOwnedIndirectSubsidiaryOfRegistrant	18467000	USD
CY2019Q4	sum	Stockholders Equity Attributable To Noncontrolling Interest Excluding Portion Attributable To Noncontrolling Interest Of Wholly Owned Indirect Subsidiary Of Registrant StockholdersEquityAttributableToNoncontrollingInterestExcludingPortionAttributableToNoncontrollingInterestOfWhollyOwnedIndirectSubsidiaryOfRegistrant	17366000	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1616268000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1444773000	USD
CY2021Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4308011000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4067556000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2332451000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2222140000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2101002000	USD
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1583996000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1526332000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1475779000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	309531000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	275813000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	270402000	USD
CY2021	sum	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	221320000	USD
CY2019	sum	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	217102000	USD
CY2018	sum	Depreciation Depletion Amortization And Accretion DepreciationDepletionAmortizationAndAccretion	204910000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	7569000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10665000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	12555000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	225173000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	213558000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	162466000	USD
CY2021	us-gaap	Interest Expense InterestExpense	103595000	USD
CY2019	us-gaap	Interest Expense InterestExpense	116509000	USD
CY2018	us-gaap	Interest Expense InterestExpense	116548000	USD
CY2021	sum	Gain Loss On Debt Financing GainLossOnDebtFinancing	-4064000	USD
CY2019	sum	Gain Loss On Debt Financing GainLossOnDebtFinancing	-14565000	USD
CY2018	sum	Gain Loss On Debt Financing GainLossOnDebtFinancing	-149000	USD
CY2021	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	-7559000	USD
CY2019	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	16237000	USD
CY2018	sum	Tax Receivable Agreement Expense Income TaxReceivableAgreementExpenseIncome	-22684000	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	28857000	USD
	sum	Other Equity Activity Value OtherEquityActivityValue	-1458000	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1616268000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	12108000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3982000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11977000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	15516000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	129055000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	78224000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	96077000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12185000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17101000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59747000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	141240000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	61123000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	36330000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3273000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2057000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2424000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	137967000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	59066000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33906000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	141240000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	61123000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	36330000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-2229000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-1925000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	1661000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	4617000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	4716000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-9348000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-146000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	1206000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	575000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-1578000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1813000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2645000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-4903000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	143053000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	63768000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	31427000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	3331000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	3935000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	2226000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	139722000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	59833000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	29201000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	141240000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	61123000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	36330000	USD
CY2021	sum	Depreciation Depletion Amortization And Accretion On Asset Retirement Obligation DepreciationDepletionAmortizationAndAccretionOnAssetRetirementObligation	227817000	USD
CY2019	sum	Depreciation Depletion Amortization And Accretion On Asset Retirement Obligation DepreciationDepletionAmortizationAndAccretionOnAssetRetirementObligation	222862000	USD
CY2018	sum	Depreciation Depletion Amortization And Accretion On Asset Retirement Obligation DepreciationDepletionAmortizationAndAccretionOnAssetRetirementObligation	208772000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	28857000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	20403000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	25378000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	7548000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	10294000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	30093000	USD
CY2021	sum	Non Cash Gain Loss On Debt Refinancing NonCashGainLossOnDebtRefinancing	-4064000	USD
CY2019	sum	Non Cash Gain Loss On Debt Refinancing NonCashGainLossOnDebtRefinancing	-2850000	USD
CY2018	sum	Non Cash Gain Loss On Debt Refinancing NonCashGainLossOnDebtRefinancing	0	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-18384000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	16012000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	57490000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-619000	USD
CY2021	sum	Noncompete Agreements Payment Term NoncompeteAgreementsPaymentTerm	P5Y
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2135000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2018000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-5467000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	37049000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5796000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3339000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-8582000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	11598000	USD
CY2021	sum	Contract With Customer Asset Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Estimates ContractWithCustomerAssetCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrEstimates	-4535000	USD
CY2019	sum	Contract With Customer Asset Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Estimates ContractWithCustomerAssetCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrEstimates	-5558000	USD
CY2018	sum	Contract With Customer Asset Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Estimates ContractWithCustomerAssetCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrEstimates	8702000	USD
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-472000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-5465000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	7159000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-10264000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-5085000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates—Preparation of these consolidated financial statements in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”) requires management to make estimates and assumptions. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities and reported amounts of revenue and expenses. Such estimates include the valuation of accounts receivable, inventories, valuation of deferred tax assets, goodwill, intangibles and other long-lived assets, the tax receivable agreement (“TRA”) liability, pension and other postretirement obligations, and asset retirement obligations. Estimates also include revenue earned on contracts and costs to complete contracts. Most of the Company’s paving and related services are performed under fixed unit-price contracts with state and local governmental entities. Management regularly evaluates its estimates and assumptions based on historical experience and other factors, including the current economic environment. As future events and their effects cannot be determined with precision, actual results can differ significantly from estimates made. Changes in estimates, including those resulting from continuing changes in the economic environment, are reflected in the Company’s consolidated financial statements when the change in estimate occurs.
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Business and Credit Concentrations—The Company’s operations are conducted primarily across 23 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Utah, Kansas and Missouri. The Company’s accounts receivable consist primarily of amounts due from customers within these areas. Therefore, collection of these accounts is dependent on the economic conditions in the aforementioned states, as well as specific situations affecting individual customers. Credit granted within the Company’s trade areas has been granted to many customers and management does not believe that a significant concentration of credit exists with respect to any individual customer or group of customers.
CY2021Q1	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	23	state
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	106000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-4231000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	18903000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-13403000	USD
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	15476000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	7640000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-16544000	USD
CY2021	sum	Contract With Customer Liability Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Cost Estimates ContractWithCustomerLiabilityCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrCostEstimates	2616000	USD
CY2019	sum	Contract With Customer Liability Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Cost Estimates ContractWithCustomerLiabilityCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrCostEstimates	1988000	USD
CY2018	sum	Contract With Customer Liability Cumulative Catchup Adjustment To Revenue Change In Revenue Billed Contract Price Or Cost Estimates ContractWithCustomerLiabilityCumulativeCatchupAdjustmentToRevenueChangeInRevenueBilledContractPriceOrCostEstimates	-5052000	USD
CY2021	sum	Increase Decrease In Tax Receivable Agreement Liability IncreaseDecreaseInTaxReceivableAgreementLiability	-5285000	USD
CY2019	sum	Increase Decrease In Tax Receivable Agreement Liability IncreaseDecreaseInTaxReceivableAgreementLiability	17291000	USD
CY2018	sum	Increase Decrease In Tax Receivable Agreement Liability IncreaseDecreaseInTaxReceivableAgreementLiability	-21666000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-449000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-7100000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-501000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	408869000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	337184000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	209368000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	123477000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	5392000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	246017000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	177249000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	177495000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	220685000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	14018000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	21173000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	21635000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	21564000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1121000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1095000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3804000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-285587000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-162809000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-419699000	USD
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	700000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	300000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	64500000	USD
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	9605000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6312000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	550000	USD
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	674045000	USD
CY2019	us-gaap	Repayments Of Debt RepaymentsOfDebt	270229000	USD
CY2018	us-gaap	Repayments Of Debt RepaymentsOfDebt	85042000	USD
CY2021	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	33257000	USD
CY2019	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	33883000	USD
CY2018	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	36504000	USD
CY2021	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	69000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1043000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	19076000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	15615000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-907000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-502000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1943000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-16771000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	8150000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-43993000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	351000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	286000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-724000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	106862000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	182811000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-255048000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	311319000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	128508000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	383556000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	418181000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	311319000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	128508000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1271721000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	36330000	USD
CY2018	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-4903000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	15616000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	25378000	USD
CY2018	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	69000	USD
CY2018	sum	Other Equity Activity Value OtherEquityActivityValue	-1928000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1192028000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	5278000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	2393000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	1199699000	USD
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	19000	USD
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	1573000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	1201291000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2332451000	USD
CY2021Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	59716000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	11864000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	47852000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	33864000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10366000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	23498000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2700000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2100000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1500000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3129000	USD
CY2021Q1	us-gaap	Interest Payable Current InterestPayableCurrent	21860000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	26892000	USD
CY2021Q1	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	46026000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	29356000	USD
CY2021Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	24601000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	16007000	USD
CY2021Q1	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	18355000	USD
CY2019Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	14968000	USD
CY2021Q1	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	15669000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	27100000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	16427000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	20177000	USD
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-593000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-658000	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-561000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5067000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3792000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4894000	USD
CY2021	sum	Income Tax Reconciliation Permanent Difference IncomeTaxReconciliationPermanentDifference	-3345000	USD
CY2019	sum	Income Tax Reconciliation Permanent Difference IncomeTaxReconciliationPermanentDifference	-6272000	USD
CY2018	sum	Income Tax Reconciliation Permanent Difference IncomeTaxReconciliationPermanentDifference	-5537000	USD
CY2021Q1	sum	Deferred Tax Assets Intangible Assets Excluding Goodwill DeferredTaxAssetsIntangibleAssetsExcludingGoodwill	199497000	USD
CY2019Q4	sum	Deferred Tax Assets Intangible Assets Excluding Goodwill DeferredTaxAssetsIntangibleAssetsExcludingGoodwill	240790000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	209644000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	201126000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	227560000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	164335000	USD
CY2021Q1	sum	Deferred Tax Liability Investment In Partnership DeferredTaxLiabilityInvestmentInPartnership	33139000	USD
CY2019Q4	sum	Deferred Tax Liability Investment In Partnership DeferredTaxLiabilityInvestmentInPartnership	31987000	USD
CY2021Q1	sum	Deferred Tax Assets Mining Reclamation Reserve DeferredTaxAssetsMiningReclamationReserve	3306000	USD
CY2019Q4	sum	Deferred Tax Assets Mining Reclamation Reserve DeferredTaxAssetsMiningReclamationReserve	2018000	USD
CY2021Q1	sum	Deferred Tax Assets Liabilities Working Capital DeferredTaxAssetsLiabilitiesWorkingCapital	45972000	USD
CY2019Q4	sum	Deferred Tax Assets Liabilities Working Capital DeferredTaxAssetsLiabilitiesWorkingCapital	37287000	USD
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1065446	shares
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-1402000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	3424000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1255000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-1638000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	3393000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5842000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	18016000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	99551000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	104614000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	103250000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1754000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-919000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3340000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	10452000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	10618000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3132000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3051000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	14408000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	13164000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4849000	USD
CY2021Q1	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.080
CY2019Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.080
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.045
CY2021Q1	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.045
CY2021Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	19058000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	18242000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	4468000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	3095000	USD
CY2021	us-gaap	Multiemployer Plan Pension Significant Employer Contribution Cost MultiemployerPlanPensionSignificantEmployerContributionCost	120000	USD
CY2019	us-gaap	Multiemployer Plan Pension Significant Employer Contribution Cost MultiemployerPlanPensionSignificantEmployerContributionCost	135000	USD
CY2021Q1	sum	Asset Retirement Obligation Anticipated Costs AssetRetirementObligationAnticipatedCosts	112800000	USD
CY2019Q4	sum	Asset Retirement Obligation Anticipated Costs AssetRetirementObligationAnticipatedCosts	97400000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	36676000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	30999000	USD
CY2021	sum	Asset Retirement Obligation Liabilities Acquired AssetRetirementObligationLiabilitiesAcquired	861000	USD
CY2019	sum	Asset Retirement Obligation Liabilities Acquired AssetRetirementObligationLiabilitiesAcquired	805000	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	6523000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	218682000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	214886000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	203305000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2332451000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2222140000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2101002000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	129055000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	78224000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	96077000	USD
CY2021	us-gaap	Interest Expense InterestExpense	103595000	USD
CY2019	us-gaap	Interest Expense InterestExpense	116509000	USD
CY2018	us-gaap	Interest Expense InterestExpense	116548000	USD
CY2021	sum	Number Of Reporting Units Being Subjected To Goodwill Impairment Test NumberOfReportingUnitsBeingSubjectedToGoodwillImpairmentTest	11	reportingUnit
	sum	Reporting Unit Initial Assessment Fair Value In Excess Of Carrying Amount Number Of Reporting Units ReportingUnitInitialAssessmentFairValueInExcessOfCarryingAmountNumberOfReportingUnits	7	reportingUnit
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	31727000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	40410000	USD
CY2021Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	56328000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	56417000	USD
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y8M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y7M6D
CY2021Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y4M24D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M6D
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.053
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.055
CY2021Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.052
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.055
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	9491000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	26742000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	6088000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	18603000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4663000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	3207000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	7053000	USD
CY2021Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2863000	USD

Files In Submission

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$SUM
Summit Materials, Inc. Stock $sum

2021 Q1 Form 10-K Financial Statement

#000162828021003021 Filed on February 24, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUM Summit Materials, Inc. Stock $sum

2021 Q1 Form 10-K Financial Statement

#000162828021003021 Filed on February 24, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUM
Summit Materials, Inc. Stock $sum